Another question about wroker management. Being impatient, I like the workers to do their improvements asap, and usually group 2 or 3 together (depending on the game speed). Is it a common practice around the players here ? I usually try to pack the workers in packs so that they can build (once upgraded to engineers in more modern area) one road on one tile in one turn. On a related subject, Is there a table somewhere that show which improvement takes how many turns depending on the game speed and amount of workers used ?